From the source code, Mod#modid expects a String String modid(); but you are providing a Reference @Mod(modid = Reference.MODID ...) You seem to think that Java will implicitly convert something to a String if you override its toString method. It won't. You won't be able to do modid = Reference.MODID.toString()...

If you want to store Unique multiple String , Then I guess java.util.Set is a good option Set<String> uniqueString = new HashSet<String>(); I hope below example will help you to understand the concept better Set<String> uniqueString = new HashSet<String>(); uniqueString.add("test"); uniqueString.add("test"); uniqueString.add("count"); uniqueString.add("check"); for (String item : uniqueString) { System.out.println(item);...

Firstly, you just need to write check::TStatus check::getStatus() ^^^^^^^ because otherwise the compiler does not know where does TStatus come from. See full compilable code here: http://ideone.com/l5qxbK But note also another problem. Your getStatus() is a public function, so you will probably want to call it from outside of a...

All these solutions work too hard. Java sets are pretty efficient, but simple array access is more so. Additionally, building two sets (one with a complement operation), copying to ArrayList, then making a new ArrayList with addAll is lots of useless work and memory garbage. The enum gives you an...

There is no such function in C or C++. But you can make a std::map<std::string, COMPUTER_NAME_FORMAT> m that does that. Fill the map by doing m["ComputerNameNetBIOS"] = ComputerNameNetBIOS; etc. Then use auto f = m.find(format); if (f != m.end()) { ... value is in f.second ... }...

What you did is useful whe some SQL code inserts a row without specifying any value for the emailCommunicationStatus column. In that case, the row will have 'UNKNOWN' as value for this column: insert into account (id, isLocked) values(1, false) But Hibernate will never do such an insert. It will...

I think what you posted here is an automatically generated Swift code, meaning that it omits implementation details. Good news is that it still works in the same way you'd expect: let x: HTTPStatusCode = .Continue println("Continue = \(x.rawValue)") prints 100...

After spending some more time on research I finally managed to get results which I was waiting for from xjc. Here is binding file I was using, so that I don't get warning for enum type being too big and so that all those big enum types would have a...

You should use the getId method of your Message enum : message[0] = ByteMessage.M.ACK.getId(); Each constant in an enum is an instance of the enum. Just like classes, an instance of an enum can have data. In your specific case, each enum constant has an id which is initialized when...

I know you said not to answer, but this might help: Using a switch statement, you can simultaneously detect the case of the enum and extract the String for use: enum Baby { case Boy (String) case Girl (String) } let baby1 = Baby.Boy("Joe") let baby2 = Baby.Girl("Sue") func babyDescription(baby:...

Move @Enumerated to the field @Column(name="status", nullable=false) @Enumerated(EnumType.STRING) private Status status; EDIT The exception you are getting is unrelated to enums. lock is a reserved word in MySQL, you'll have to change it's name to something else....

It's not just IEnumerable<T> - you can cast it to the array type as well, so long as you fool the compiler first: public enum Foo : short { A, B } class Test { static void Main() { Foo[] foo = new Foo[10]; short[] shorts = (short[]) (object) foo;...

Try changing AGK_Delete::TypeConversion to take a std::string instead of a const char * passing a const char * to a std::string parameter will cretae a std::string with the value of the parameter passed. class types can override methods to allow == to do what you thought you were doing, so...

Your enum LogSeverity describes a contract, so if you want it separated into two assemblies, add interface and enum to one assembly and implementation to a different assembly. Interfaces assembly: public enum LogSeverity { // enum items } public interface ILogger { void Log(string message); void Log(string message, LogSeverity severity);...

You can cast the array to an int array and pass it in: function2((int*)array); But then function 2 won't know how to decode your enum. If you want to use the enum across more than one function, then you need to define it as a global or in some other...

Each enum constant have its own name as declared in its declaration. Static method valueOf of particular enum returns the enum constant of this type by name. Thus, instead: Choice month = Choice.D; just use this: Choice month = Choice.valueOf(choice); ...

Rails enum doesn't have in-built validation. The current focus of AR enums is to map a set of states (labels) to an integer for performance reasons. Currently assigning a wrong state is considered an application level error and not a user input error. That's why you get an ArgumentError. You...

Enums were added in python 3.4 (docs). See PEP 0435 for details. If you are on python 2.x, there exists a backport on pypi. pip install enum34 Your usage example is most similar to the python enum's functional API: >>> from enum import Enum >>> MyEnum = Enum('MyEnum', 'APPLE BANANA...

If you take a look at code of EnumMap#keySet() 381 public Set<K> keySet() {382 Set<K> ks = keySet;383 if (ks != null)384 return ks;385 else386 return keySet = new KeySet();387 } you will notice that it returns keySet used internally by EnumMap to store keys. Now each time we call...

You have to cast the int value coming from database explicitly to your Enum type before assigining and in View it will get selected automatically by the html helper. do this: select new EditStudentViewModel { Student_ID = s.Student_ID, FullName = s.FullName, Standard = s.Standard, RollNo = s.RollNo, Enum_Member_BloodGroup = (clsEnums.bloodGroup)s.BloodGroup...

No, with @ElementCollection you have to use @CollectionTable which is a separate database table used just to store your values (actually preferable in this case). You can have a simple String mapping and a couple of util methods for converting a CSV string to list of enums and vice versa....

Generally, using enums is appropriate, especially if you have a defined set of possible types. You can also add behavior to the enums, which could make your enum a little bit more sophisticated: public enum OverrideType { WORKDETAIL("Work Detail"), WORKPREMIUM("Work Premium"), EMPLOYEESCHEDULE("Schedule"), EMPLOYEE("Shift Pattern"); private String identifier; private OverrideType(String identifier){...

Every enum has a static valueOf() method, that takes the name of an enum constant ("Geography" for example), and returns the corresponding enum constant (Category.Geography for example). So you just need Category category = Category.valueOf(rs.getString(someIndex)); ...

Raw values are for when every case in the enumeration is represented by a compile-time-set value. The are akin to constants, i.e. let A = 0 let B = 1 is similar to: enum E: Int { case A // if you don't specify, IntegerLiteralConvertible-based enums start at 0 case...

The Copy trait is a subtrait of Clone, so you always need to implement Clone if you implement Copy: #[derive(Copy,Clone)] enum MyEnum { Test } This makes sense, as both Copy and Clone are ways of duplicating an existing object, but with different semantics. Copy can duplicate an object by...

How does it (or the compiler) decide whether to return Score with value assigned to one out of 0, MAX_INT, or MIN_INT? It doesn't. When you force a cast to Score using Score((mg << 16) + eg), you can use any value, not necessarily one of the above declared...

Since the filename is a unique identifier - unless you expect the file names to change in the future (which isn't likely, and even if it happens refactoring is simple) there is no point to it. You already have a unique identifier for a file you're loading. The only benefit...

As far as Python is concerned, you are importing a different module; you have Piece and you have Chess.Piece. Python will create separate module objects for these two modules, each with a separate enum class. The values on those classes are never going to test as equal. If all your...

At some level you're going to have to iterate over the entire set of enumerations that you have, and you'll have to compare them to equal - either via a mapping structure (initial population) or through a rudimentary loop. It's fairly easy to accomplish with a rudimentary loop, so I...

You can cast an integer to an enum type with static_cast, e.g. SetValue(static_cast<enumtype>(4)); That is an unmaintainable last resort, though. Part of the point of enums is to have something more meaningful than bare integer constants. Another reason why it's a good thing to use them is because integer constants...

I think that creating a Map<Direction, Direction> for each enum value is going to give you a good balance between performance and code neatness. The combine method becomes: public Direction combine(Direction other) { return this.combinerMap.get(other); } Of course, you need to build the maps during initialization of the enum class....

You are trying to bind to a private variable, instead, your enum should be exposed as a Property. public IEnumerable<StrategyTypes> StrategyTypes { get { return Enum.GetValues(typeof(StrategyType)).Cast<StrategyType>(); } } Also, Discosultan has already solved another problem for you....

An enumerated type is essentially a named integral value. That enumerated type is associated with an underlying integral type that can represent all the named values. That underlying integral type is required to be able to represent all the unique named values, but its actual type is implementation defined. In...

I suggest to use an util-method like @Phil Anderson mentioned. I would only change it to a general pattern: public static <T extends Enum<T>> void some_method(Class<T> clazz, String name) { try { T foundEnum = Enum.valueOf(clazz, name); // name matches to one of enum values, do something with it }...

Now you've finally posted enough code, we see that this chips m_doubloon(DOUBLOON); is actually a class member declaration. Class members can't be initialised with (), only with = or {}. Assuming your compiler supports in-class initialisation (introduced in C++11), you should be fine with chips m_doubloon{DOUBLOON}; ^ ^ Alternatively, you...

Here’s the problem: imagine some subsequent lines of code. // none of this will compile... var bar = [AssociatedProtocol]() bar.append(GenericEnum.Associated(1)) bar.append(GenericEnum.Associated("hello") let foo = bar[0].foo() What type is foo? Is it a GenericEnum<Int> or a GenericEnum<String>? Or neither? This is especially a problem because enums, like structs, are “value types”....

The code for keyMirror assigns the property key to the value: for (key in obj) { if (obj.hasOwnProperty(key)) { ret[key] = key; } } Therefore, the type of returnVal and CrudTypes.CREATE should be string. Note that Object.keys(...) returns string[] in TypeScript and that the following code outputs string for all...

Instead of using a std::map you could write an information retrieval function which uses a switch statement to get the right information. Many compilers will present you with a warning if you miss an enum value in a switch, so you could turn on the necessary warnings in your compiler,...

Looks like the parameter type requires the full type name. I used mono_method_full_name with the second argument signature true to get the signature (I used my own test class with identical structure but different names): MonoDomain* domain = mono_jit_init(CSHARP_LIB); MonoAssembly* assembly = mono_domain_assembly_open(domain, CSHARP_LIB); MonoImage* image = mono_assembly_get_image(assembly); MonoClass* sandboxClass...

Objective-C is C. An enum is a C enum. And there is no namespacing. That is exactly why the convention is to name the enumerations AnEnumAnyValue and AnotherEnumAnyValue. You'll find that all Cocoa enumerations work that way: typedef enum { UIViewAnimationTransitionNone, UIViewAnimationTransitionFlipFromLeft, UIViewAnimationTransitionFlipFromRight, UIViewAnimationTransitionCurlUp, UIViewAnimationTransitionCurlDown, } UIViewAnimationTransition; If you want...

The differences between a class and an enum are not so big. I changed the first line of code to public enum instead of public class and added the name of your instance. public enum Employee { // changed "class" to enum INSTANCE; // added name of the (single) instance...

As soon as you start talking about relationships between things, it feels like you are talking about inheritance. Best practice would be to represent this as a class structure. class Instrument { void Play(); } class StringedInstrument : Instrument { void Strum(); } class Guitar : StringedInstrument { } With...

The problems to this was two-fold. First problem: Error::Type was not registered within the Meta type system, the following line needs to be added after the Error class declaration: Q_DECLARE_METATYPE(Error::Type) Second problem: Was that I had selected the name 'Error' for the Error class when I registered it. This clashed...

Enums won't cause a stack overflow. But this will: get { return Class; } Your getter for Class returns Class. Which is an infinite recursion. You probably want to store the value in a backing variable: private Class _class; public Class Class { get { return _class; } set {...

You can create an initializer for the enum that takes a String as a parameter. From there, you switch over the string to set the value of self to a specific case like so: enum Food: Int { case None, Pizza, Pancakes init(string: String) { switch string { case "Pizza":...

Unfortunately there is no out-of-the-box control for this like you get with @Html.EnumDropDownListFor. You can, however, create an editor template for radio button enums like mentioned in the following: MVC5: Enum radio button with label as displayname (see selected answer).

Designers made a mistake when they first designed Java: static members, which belong to the class itself, and not to any instance of the class, can be accessible using an instance of the class. consider this class: class Foo { public static int bar = 0; } You should normally...

When I'm trying to launch my application it says "Unfortunately, application has stopped." I'm sure it is because of enum because when I comment these two lines where I'm using enum, it works. Can somebody help me, please? then is probably because BoardState was never initialized, and you are...

If you don't want the user to be able to type in a value, then it may be simpler to use a UIButton instead of a UITextField and update the button's label using the picker value. However, you can easily use the enumeration's raw values to validate the input -...

You can't do this with the enum stdlib module. If you try it: class A(Enum): class B(Enum): a = 1 b = 2 class C(Enum): c = 1 d = 2 A.B.a … you'll just get an exception like: AttributeError: 'A' object has no attribute 'a' This is because the...

TypeScript enums when compiled into plain JS contain both the symbolic name AND the numeric values as properties and that explains why you get FrontEnd, BackEnd, Designer, 0, 1, 2 when you try to enumerate the properties of the object. As best I know, there is no post-compile way to...

As documented by MSDN Control::Invoke Method (Delegate, array) the Invoke method accepts these parameters: method Type: System::Delegate A delegate to a method that takes parameters of the same number and type that >are contained in the args parameter. args Type: array An array of objects to pass as arguments to...

If you select the Property in the designer that you want to convert to an Enum and go to the Properties screen in Visual Studio (Press F4). In the VS Properties screen, there is a property named Type. If you scroll all the way to the bottom of this Type...

Consider using the Cast<>() LINQ Method instead of a for loop, this looks cleaner: var seasons = SomeFunction(seasons.Cast<object>().ToArray()); There's no other way you can cast an array of value types to an array of objects, you can't leverage array covariance in this case because it only works between arrays of...

In the above code i want to add the prices value after "is" Judging by the above line from your question and the fact that your print statement says The price of menu is, it looks like you want to print the total cost of the Chinese menu :...

If you have your classes in a package, say package pkg; then using pkg.Apple.Winesap will work. (The fully qualified name of the other Apple is pkg.Test.Apple.) You can also statically import the members from pkg.Apple: import static pkg.Apple.*; and then use Winesap. If you're using the default package (no package...

I finally found the solution to my problem. My solution contains C++ projects, so I activated the .Net Native, like it was said in every tutorials I saw about migrating a Windows 8.1 app to a Windows 10 UWP app, which is ok, but doing so sets the property UseDotNetNativeToolChain...

From the Xcode 6.3 release notes (emphasis added): Swift Language Enhancements ... Swift enums can now be exported to Objective-C using the @objc attribute. @objc enums must declare an integer raw type, and cannot be generic or use associated values. Because Objective-C enums are not namespaced, enum cases are imported...

You (understandably) misinterpreted the error message: 14:22 error: wrong number of lifetime parameters: expected 1, found 0 [E0107] src\lib.rs:14 value : & 'a Cell , You thought "But I provided the lifetime parameter! It is 'a!" However, the compiler is trying to tell you that you did not provide a...

The actual enum behavior of instatiating the instance doesn't have an issue with thread safety. However, you will need to make sure that the instance state itself is thread-safe. The interactions with the fields and methods of Application are the risk--using either careful synchronization and locking, or purely concurrent data...

The problem here is that your DLL is a .Net DLL, which is not a native DLL. JNA only loads and understands native DLLs, that is, DLLs built to function outside the .Net framework. What this means is that you need a different glue between Java and .Net. I have...

I'd use a Map so that your enum values can be any type, rather than having them coerced into strings. function Enum(obj){ const keysByValue = new Map(); const EnumLookup = value => keysByValue.get(value); for (const key of Object.keys(obj)){ EnumLookup[key] = obj[key]; keysByValue.set(EnumLookup[key], key); } // Return a function with all...

Why do you need to propagate anything? As like as your subobjects have their enumerations clear, you can just use them directly. Once you have Frame::Color, you don't need to make a Bike::Frame::Color... the one is sufficient. For example: struct Frame { enum class Color { BLACK, RED }; Color...

You need to use a TemplateBinding instead. {TemplateBinding CurrentBackground} In fact, you don't even need to use a DataTrigger. Just use a normal trigger instead. <Trigger Property="CurrentBackground" ... ...

Indeed, you can do it if you change the order of actions: private static List<Fruits> getFruits() { EnumSet<Fruits> local = EnumSet.of(CURRENT_FRUIT); EnumSet<Fruit> otherFruits = EnumSet.complementOf(CURRENT_FRUIT); // start by adding and shuffling otherFruits List<Fruits> result = new ArrayList<Fruits>(otherFruits) Collections.shuffle(result, new Random(System.nanoTime())); // now add local result.addAll(new ArrayList<Fruits>(local)); return result; } ...